Yeah, I've heard that, too, about flight attendants and pantyhose. However, my main reason for not using coffee makers in hotel rooms is because I've also heard/seen (on 20/20, etc. specials) that a lot of times housekeeping will just use the same rag that they wiped your counter or toilet down with to wipe out your coffee pot.

I hate to think about it, but I can totally see that happening. So, even if you clean it when you get there, it's the in-between cleanings that worry me.